City report · Jiangsu, China
Zhenjiang Air quality today
Air quality in Zhenjiang currently reads AQI 159 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Air quality right now
AQI 159
Unhealthy
- PM2.5, fine particles (µg/m³)
- 67.1
- tree cover
- 26.7%
- trees in this area
- 73.1K
- more trees needed
- 36.4K
Measured across a 2 km radius around Jingkou District, Zhenjiang, Jiangsu, China (12.57 km²), from a satellite image of Sep 7, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Zhenjiang · AQI 159 (Unhealthy)
Zhenjiang's tree count comes to 73,060 trees across 10.95 km² of land, 13 points below the 40% tree-cover level considered healthy for this area, so roughly 36,393 more trees would close the gap.
Air quality detail
Air quality in Zhenjiang today: AQI 159, Unhealthy
Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Vocational Education Center , Zhenjiang (镇江职教中心), 3.4 km away · median of 3 stations
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
67.1
PM10
107.5
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Jiangsu Environmental Protection public network (江苏省城市空气PM2.5等试运行监测数据平台), Jiangsu Province PM2.5 Air Monitoring Comission (江苏省城市空气PM2.5等试运行监测数据平台)
- Outdoor exercise
- Everyone should cut down long or hard exercise; sensitive groups should avoid it
- Windows
- Keep them closed
- Mask
- Wear an N95 outdoors
- Air purifier
- Run one
Over the last 7 days, the CAMS air-quality model put Zhenjiang's daily AQI at 106 on average, from 46 on Nov 9 to an hourly peak of 210 on Nov 11.
Where Zhenjiang stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Zhenjiang: Below target
26.7% tree cover against a 40% healthy-neighborhood target, across 10.95 km² of land.
Trees in this area
73,060
Target trees
109,453
More trees needed
36,393
CO₂ if planted / yr
800.6 t
Deforestation · 2001–2025
How much forest has Zhenjiang lost?
Since 2001, the area within 10 km of Zhenjiang has lost about 14 hectares of forest (about 19 football pitches): 1.7% of the forest it had in 2000. Most of it (74%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 14 haabout 19 football pitches
- Share of its forest
- 1.7%of what there was in 2000
- Cleared for good
- 10 hadeforestation: turned into farms, mines or towns
The worst year was 2011, when about 3 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | 1 ha | under 1 ha | 2 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | 1 ha | under 1 ha | 1 ha |
| 2010 | 1 ha | under 1 ha | 2 ha |
| 2011 | 2 ha | under 1 ha | 3 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | 1 ha | under 1 ha | 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Zhenjiang?
- Towns and roadscleared for good52% · 7 ha
- Farms, pasture and plantationscleared for good21% · 3 ha
- Loggingcan grow back1.5% · under 1 ha
Also: unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 2,800 ha
- Forest in 2020
- 3,480 ha
- Overall change
- +680 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Zhenjiang grew from about 2,800 hectares to 3,480 hectares, a net gain of about 680 hectares (+24%). New forest grew on about 719 hectares, while 39 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Zhenjiang
Same 2 km radius, same index — so they compare directly.
Build your own
Compare Zhenjiang with anywhere
This place
Zhenjiang
Use this data
Put Zhenjiang's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Zhenjiang
What is the air quality (AQI) in Zhenjiang right now?
The latest reading for Zhenjiang shows an AQI of 159 (Unhealthy), measured Nov 11, 22:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Vocational Education Center , Zhenjiang (镇江职教中心), 3.4 km away). The main pollutant is PM2.5. Everyone should limit long outdoor exertion; sensitive groups more so.
Is it safe to exercise outside in Zhenjiang today?
At AQI 159 (Unhealthy): everyone should cut down long or hard exercise; sensitive groups should avoid it. Windows: keep them closed. Masks: wear an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Zhenjiang been like this week?
Over the last 7 days, the CAMS air-quality model put Zhenjiang's daily AQI at 106 on average, from 46 on Nov 9 to an hourly peak of 210 on Nov 11. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Zhenjiang lost since 2001?
Since 2001, the area within 10 km of Zhenjiang has lost about 14 hectares of forest (about 19 football pitches): 1.7% of the forest it had in 2000. Most of it (74%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Zhenjiang grew from about 2,800 hectares to 3,480 hectares, a net gain of about 680 hectares (+24%). New forest grew on about 719 hectares, while 39 hectares were lost.
What is the tree count in Zhenjiang?
Zhenjiang has an estimated 73,060 trees across the 10.95 km² of land measured — 26.7% tree cover, 13 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Zhenjiang need?
Zhenjiang needs roughly 36,393 more trees to close a 13-point shortfall against its 40% tree-cover target — about 800.6 t of extra CO₂ absorbed per year once grown.
How are Zhenjiang's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Jingkou District, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Jingkou District; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address